Lubricating apparatus



Feb. 13, 1923. 1,444,924

E. P. LARSH LUBRI CATING APPARATUS Filed July 5, 1921 i-ilm ATTORNEY.

Patented Feb. 13, 1923.

TED

EVERETT P. LABSH, OF DAYTON, OHIO, .ASSIGN OR TO THE BURNETT-LABSH 'MAN'EF FACTUBING COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO,

' LUBRICATING APPARATUS.

Original application filed November 27,1916, Serial No. 133,727. Divided and this application filed July To all whom it may concern:

Be it known that I, EVERETT P. LARsH, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Lubricating Apparatus, of which the following is a specification.

My invention relates to lubricating means for reciprocatory cross head pistons, and like elements, adapted to automatically feed the lubricant while the parts are in operation, but retarding the supply of lubricant, when the parts are .at rest.

The object of the invention is to simplify the lubricating means as well as the means and mode of operation thereof, of such reciprocatory members, whereby they will not 4 only be cheapened in construction, but will be more efiicient in use, positive in operation, uniform in action, and unlikely to get out of repair. A further object of the invention is to provide lubricating means for pump elements, or other mechanism, which when once installed under the usual practice is allowed to operate for long periods of time without attention.

The present construction is designed to afford an ample supply of lubricant, with means for regulating the discharge of lubricants, and the distribution thereof over the bearing surfaces.

' With the above primary and other incidental objects in view as will more fully appear in the specification, the invention consists of the features of construction, the

parts and combinations thereof, and the mode of operation or their equivalents as hereinafter described and set forth in the claims.

Referring'to the drawing, Fig. ,1 is a side elevation of a pumping apparatus, to which the present invention has been applied. Fig. 2 is a side elevation of the cross head or piston removed from its bearing. Figs. 3 and 4 are similar views illustrating modifications of the lubricant distributing means. Fig. 5 is a transverse sectional view on line 5-5 of Fig. 2. v

Like parts are indicated by similar char- Serial No. 482,420.

acters of reference throughout the several views.

In the pump construction disclosed in the drawings, which is used for illustrative purposes only, there is employed an uprlght main frame or pedestal 1, from one side of which projectsa sleeve or guide 2, for the cross head. The cross headwithin the guide 2 is operatively connected by a pitman 3, with a wrist pin 4 carried by a drive wheel 5, mounted upon the main shaft 6, and actuated in any suitable manner. Fixedly attached to the cross head within the guide 2 1s a dependent pump rod 7 reciprocated in unlson with the cross head.

Such general construction forms no part of the present invention, but is used for illustrativepurposes only, and it is to be understood that the invention is not limited to such applications alone, ,but may be emformed cup shaped as at 9 to form a reservoir or container for oil or other lubricant.

At spaced intervals about the lower portion of the reservoir or container 9 the walls of the cross head are provided with openings preferably pipe threaded to receive plugs 10 of wood. The plugs 10 are arranged with the end of the grain exposed on the inner and outer sides of the cross head. The interior of the cross head is filled with oil or other lubricant which soon saturates the wooden plugs 10. The lubricant is carried thru the pores or grains of the saturated wooden plugs from the interior reservoir to the bearing face of the cross head. It has been found in practice that where oil ducts are employed,'no matter how small those ducts may be the oil will continue to flow or ooze thru the bearings while the cross head is ployed in conjunction with a cross head, pisoil will congeal or thicken in the pores of the wooden plugs and will not ooze or discharge. However, upon the operation of the pump the wearing of the wooden plugs as the cross head is reciprocated to and fro tends to warm or thin the particles of oil held in the capillaries or pores of the plugs and a flow of lubricant is induced suiiicient to lubricate the cross head slide. It is also found that the reciprocation of the cross head 8, within the sleeve or bearing 2 creates a suction or induces a capillary attraction which tends to draw the lubricant thru the pores of the Wooden plugs and so accelerate the supply. lhis acceleration of the flow oflubricant thru the wooden plugs to the bearing surface of course ceases when the pump is at rest and the lubricant remains inert in the capillaries of the wooden plugs.

To effect a thorough distribution of the lubricant discharged thru the plugs, the plug recesses or openings are preferably connected one with the other by a. shallow channel which may comprise a straight peripheral groove 11 as shown in Fig. 3, or may be arch shaped or angular as shown in Fig. 5. In lieu of the connecting groove for distributing the lubricant a second series of wooden plugs 10 may be employed as shown in Fig; 4e. In the event that two series of wooden plugs are used, the plugs of the respective series will be ofi set as shown in Fig. 4. It is found in practice that the use of the wooden plugs insures a sufficient supply of lubricant during the eriod that the pump is in operation and that the flow of lubricant is automatically retarded while the pump is at rest.

From the above description it will be apparent that there is thus provided a deviceof the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has been described in language more ,or less specific as to. structural features, it is to' be understood that the invention is not limited to the specific details shown, but that the means and construction herein disclosed comprise but one of several modes of putting the invention into eifect,

and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims.-

Having thus described my invention, I

1 1.. In aconstruction of the character described, a vertlcally reciprocating plunger, a. reservoir for lubricant formed therein in Lee lees a bearing guide, a lubricant passage leading from the reservoir to the bearing surface of said members, and a wooden closure for said passage thru which the lubricant is filtered.

2. In a construction of the character described, a vertically reciprocating hollow plunger, the hollow interior of which'forms a reservoir for lubricant, a guide therefor, a. lubricant passage leading from the reservoir to the bearing surface of'said members, and a wooden plug inmrted in said passage with the grain of wood substantially aligned with thedirection of the passage.

3'. In a construction of the character described, two relatively rreciprocating mernbers movable in a vertical direction bearing one upon the other, a wooden insert forming a part of the bearing surface and a lubricant reservoir in one of the members with which the wooden insert communicates.

i. In a construction of the character de scribed, two relatively movable members bearing one upon the other, a plurality of wooden inserts in the bearing face of one of said members, said inserts being arranged in spaced relationwith the ends of the grain exposed, and a lubricant reservoir with which the said inserts communicate, sub stantially as specified.

5. In aconstruction of the character described, two relatively movable members bearing'one upon the other, a lubricant reservoir, lubricant passages leading from the reservoir to 'the bearing surface, porous plugs in said passages and grooveddepressions in the face of the bearing connecting the plugged passages one with the other, the vfrictional engagement of the members serving to warm the lubricant and induce a flow thereof when in motion, the lubricant being adapted to congeal in the pores of the plugs when at rest. I

6 In a construction of the character de scribed, two relatively movable members bearing one upon the other, a lubricant reservoir, lubricant passages leading from the reservoir to the bearing surface, porous plugs in said passages, and arch shaped grooved depressions in the bearing face connefiting the plugged passages one with the ot er. i

7. In a construction of the character described, two relatively movable members bearing one upon theother, a lubricant reservoir, lubricant passages leading from the reservoir to the bearing surface, porous plugs in said -passages, said plugged passages being arranged in separate series with the plugged passages of one series ofi'set or staggered in relation with those of the other series.

8. In aconstructionbf the character described, a cylinder, a reciprocatory piston, a

relity of radially disposed wooden plugs In testimony whereof, I have hereunto I extending thru the walls of the piston and set my hand this 4th day of May, A. D. 1921. communicating with the lubricating reservoir, the movement of the piston in relation EVERETT LARSH with the walls of the cylinder inducing cap- Witnesses: 1

illary attraction by which a flow of lubri- EDGAR G. DENLINGER, cant is induced. GEORGE C. HILLWIG. 

